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Principles of Inheritance and Variation

Mendelian genetics, deviations from Mendelism, chromosomal theory, linkage, sex determination, pedigree analysis and genetic disorders — consistently one of the top-scoring NEET Genetics chapters.

16 min readWeightage: 7–8% (4–5 questions every year in NEET)30-question chapter test included
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Principles of Inheritance and Variation (Biology) is part of the ICSE & IGCSE syllabus plan. Pick the batch by the year you appear in — Class 11 students join the two-year ICSE / IGCSE 2028 program, Class 12 students and repeaters join the one-year or crash program for ICSE / IGCSE 2027.

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